The person I use to be

I'm not the person I use to be
Changing second by second
Play one part than another
Sometimes feel like an actor
Hiding something
Revealing something
When I was younger I was weak and fragile
Today I grow and build my walls stronger
Won't let others bring me down for their satisfaction
Some say my heart is stone
Some say its ice
Some say I have no core
But still they keep wanting more
More from me
Keeping their eyes open
For the next trick I'll perform
I can surprise you.
Which path will I go on now?